Gas-lamp.



F. J. & H. R. HUMPHREY.

GAS LAMP.

APPLICATION FILED FEILIS, 1911.

1,020,556. Patented Mar. 19, 1912.

2 SHEETS-SKEBT 1.

avwantod FigzlI.

COLUMIHA PLANOQIIAPH C0..WASN|NOTON. u t.

F. J. & H. R. HUMPHREY.

GAS LAMP.

APPLICATION FILED PEB.15, 1911.

1,020,556, Patented Mar. 19, 1912.

2 SHEETS-SHEET 2.

Elvwe Mord Witness y w UNITED STATES PATENT OFFICE.

FREDERICK J. HUMPHREY AND HUBERT R. HUMPHREY, 0F KALAIVIAZOO, MICHIGAN,ASSIGNORS TO GENERAL GAS LIGHT COMPANY, OF KAI-AMAZOO, MICHIGAN.

GAS-LAMP.

To all whom "it may concern:

Be it known that we, FREDERICK J. HUM- PHREY and HUBERT R. HUMPHREY,citizens of the United States, residing at Kalamazoo, county ofKalamazoo, State of Michigan, have invented certain new and usefulImprovements in Gas-Lamps, of which the following is a specification.

This invention relates to improvements in gas lamps.

The main objects of this invention are: First, to provide an improvedgas lamp of the inverted burner type. Second, to provide an improved gaslamp of the inverted burner type adapted for use as a post or bracketlamp, and for use out of doors or exposed places. Third, to provide in agas lamp of the inverted burner type, an improved supporting means.Fourth, to provide an improved gas lamp in which all the parts areaccessible for adjustment, or for the cleaning or renewing of the parts.Fifth, to provide in a gas lamp an improved valve.

Further objects, and objects relating to structural details, willdefinitely appear from the detailed description tofollow.

e accomplish the objects of our invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure, which is a preferred embodiment of our invention, isclearly illustrated in the accompanying drawing, forming a part of thisspecification, in which:

Figure I is a detail side elevation of a structure embodying thefeatures of our invention, a post being shown in conventional form toillustrate our improved lamp in an operative relation. Fig. II is anenlarged vertical central section through the chimney and globe, theburner, valves and pipes being shown in full lines. Fig. III is anenlarged vertical section through the burner and the supply valve, someof the parts being shown in full lines to better illustrate their form.Fig. IV is an enlarged detail section taken on a line corresponding toline 44 of Fig. III, showing the gas delivery nozzle and the regulatingvalve therefor, the regulating valve being shown in full lines. Fig. Vis a horizontal section taken on a line corresponding to line 5-5 ofFig. III.

Specification of Letters Patent.

Application filed February 15, 1911.

Patented Mar. 19, 1912. Serial No. 608,692.

Fig. V1 is a horizontal section through the burner body, taken on a linecorresponding to line 6-6 of Fig. III. Fig. VII is an enlarged detail,partially in section, showing the pilot connections. Fig. VIII is adetail plan of the valve casing, partially in section, showing theregulating valve and ilot. Fig. IX is a detail horizontal section sowing details of the chimney bracket.

In the drawing, similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Referring to the drawing, 1 represents a lamp post, having arms 2thereon. The lamp is supported on one of the arms or brackets 2 by meansof the delivery pipe 3, which is, in effect, an extension for the arm.The valve casing 1 is mounted on the end of the arm. The valve casing isprovided with a chimney bracket 4 The lamp chimney, in the structureillustrated, consists of the downwardly-flaring top section 5, the bodysections 6 and 7 and a bottom section 8. The body section 6 is providedwith an upwardly-flaring flange 9 at its upper end and a downwardlyflaring flange 10 at its lower end, and is provided with an annularoffset 11 adapted to receive the upper end of the lower body sect-ion 7and the upper end of the casing member 12. The flange 9 of the bodysection 6 is provided with an upturned rim 13 fitting the top section 5,as illustrated.

The flange 9 is provided with a plurality of openings 14 adjacent to itsedge, or adjacent to the rim 13. The bottom section 8 is arranged on thelower end of the section 7. This bottom section 8 has an upwardlyflaringflange 15 on its upper end having air inlet openings 16 therein.

The casing 12 is arranged about the lower part of the chimney, its upperend being under the flange 10 on the chimney section 6, its lower endresting upon the flange 15. The casing 12 is provided with air inletopenings 17 under the flange 10. The casing and chimney thus arrangedform an annular air chamber with air inlet openings at its upper andlower ends.

The globe 19 projects into the supporting ring while the shade 20 issecured to the outwardly-projecting flange 21 on the supporting ring.The connections for the globe supporting ring are not here illustrated,as they form no part of this invention.

The chimney structure described is that of my application for LettersPatent filed concurrently herewith.

The hood 22 is supported above the upper end of the chimney by thestraps 23. These straps project downwardly within the chimney to supportthe deflector 24. This deflector is concaved in general form, preferablyhaving a raised central portion 25. The upper edge of the deflector issupported in substantially the same plane as the openings 14, so thatthe air and gases passing through the chimney are deflected toward theseopenings, and should air blow into the top of the chimney, the deflectorand the rising current of heated air and gases deflect the down-comingair to these openings and out through the same. Normally, the heated airand products of combustion are delivered past the deflector and out theupper end of the chimney under the hood, but in the event of acounter-current of air entering the upper end of the chimney, it, alongwith the heated air and products of combustion, are delivered throughthe openings 14 until the currentagain sets past the openings throughthe top of the chimney.

The straps 23 are preferably formed integrally and connected to the cap,to the deflector, and to the top portion of the chimney by rivets, asillustrated.

The chimney is mounted on the arms 26 on the bracket 4, bolts as 27being arranged through the arms and the casing member 12 of the chimney.The lamp is thus supported through the valve casing, which forms asupporting bracket therefor.

The valve 28 is of the plug type and is arranged in a vertical position.The valve lever 29 is arranged on the lower end of the valve andprojects outwardly over the reflector or shade 20. With the lever thusarranged, the edge of the shade serves as means for locating the valvelever and guiding a pole used for operating the valve. A furtheradvantage in this arrangement is that the supply pipe delivers upwardlyso that condensation or sediment in the gas is not delivered to theburner.

The delivery passage 30 in the bracket 4 delivers upwardly, as shown inFig. III, to the delivery nozzle 31. This nozzle is threaded upon themember 32 which is threaded into the bracket 4', as illustrated. Themember 32 is chambered and provided with inlet openings 33. The nozzleis controlled by the regulating valve 34 threaded into the member 32,see Fig. IV. This delivery nozzle structure is substantially thatdescribed in my said application.

The pilot 35 is arranged through the chimney and connected to the valvecasing in front of the valve by means of the tube 36, which is connectedto the passage 37, the tube being threaded into the casing and into thecoupling member 38 into which the burner 35 is threaded, the couplingmember being threaded into the bracket 4, see Fig. VII. The pilot isregulated by means of the valve 39, see Fig. VIII.

If desired, the bracket 4 and the valve casing 4 may be formedintegrally, it being a matter of structural convenience to form themseparately, as shown.

The burner comprises a body portion 40 and the inlet passage member 41.The burners 42 are supported on branch-like arms 43 formed on the body40. The inlet passage member is provided with a horizontal portionadapted to receive the mixing tube 44. This mixing tube is provided withair inlets 45 opening into the space or chamber between the-chimney andthe chimney casing member. The mixing tube is arranged through the wallsof the chimney casing and forms a support for the burner.

The burner member 41 is provided with a nipple-like projection 46, whichprojects into the opening in the oppositeside of the chimney. Thecontrol valve 47 is arranged at the inner end of the horizontal portionof the inlet passage and is adjusted to regulate the mixture deliveringto the burners, the stem 48 of this valve being arranged through thecasing so that it can be adjusted from the outside.

The burner body 40 is supported on the passage member 41 by means of thebolt 49, which depends centrally from the member 41, the member 40having a central opening adapted to receive it. The nut 50 secured onthe lower end of the bolt is preferably a cap nut adapted to form atight joint at this point.

In the delivery chamber of the burner, we arrange a screen consisting ofa pair of conical members 51 and 52, the member 51 being inverted andresting in the chamber of the body member of the burner, while themember 52 rests on the upper end of the member 51, the bolt 49 beingarranged centrally through both of the members. The burner body can bereadily removed for the purpose of cleaning the screens, as desired. A.single supporting rod or bolt supports the body of the burner inposition.

The chamber in the body 40 is conical in shape and provided with radialribs 53 on its walls disposed between the burner passages 54. These ribsare provided to insure an even distribution of the gas to the severalburners, the bottom screen 51 resting thereon. By this arrangement ofthe screen, the gas passes freely therethrough and a double screen isnot only provided between the gas supply and each burner, but alsobetween the several burners so that back firing from one burner to theother and to the mixing tube, is prevented.

It is found that in shutting the supply valve 28, the burners are notalways simultaneously extinguished, and there still being an explosivemixture in the burner and burner tubes, an explosion is likely to occurunless guarded against by some means, as illustrated.

We have illustrated and described our improvements in a preferredembodiment. 7e are aware that various modifications in structuraldetails are possible, but as such modifications will no doubt be readilyunderstood by those skilled in the art to which this invention relates,we have not attempted to illustrate or describe the same herein. Wedesire to be understood as claiming our invention specifically, in theform illustrated, as well as broadly within the scope of the appendedclaims.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent is:

1. In a gas lamp, the combination with a horizontally-disposed gassupply pipe, of a burner; a chimney; a supply valve casing mounted onsaid gas supply pipe; a chimney supporting bracket on said valve casingand having a delivery passage communicating with the passage of saidvalve casing and leading upwardly therefrom; a g: s delivery nozzlemember arranged through said bracket above said valve casing andcommunicating with said. bracket passage; a delivery nozzle on the innerend of said nozzle member; a mixing tube arranged on said bracket andadapted to serve as a burner supporting member; a pilot burner; acoupling mem ber for said pilot threaded into said bracket; and adelivery tube threaded into said valve casin and coupling member.

2. In a gas lamp, the combination with a horizontally-disposed gassupply pipe, of a burner; a chimney; a supply valve casing mounted onsaid gas supply pipe; a chimney supporting bracket on said valve casingand having a delivery passage communicating with the passage of saidvalve casing and leading upwardly therefrom; a gas delivery nozzlemember arranged through said bracket above said valve casing andcommunicating with said bracket passage; a delivery nozzle on the innerend of said nozzle member; and a mixing tube arranged on said bracketand adapted to serve as a burner supporting member.

8. In a gas lamp, the combination with a horizontally-disposed gassupply pipe, of a burner; a chimney; a supply valve casing mounted onsaid gas supply pipe; a chimney supporting bracket on said valve casingand having a delivery passage communicating with the passage of saidvalve casing; a

pilot burner; a coupling member for said pilot threaded into saidbracket; and a delivery tube threaded into said valve casing andcoupling member.

4. In a gas lamp, the combination with a horizontally-disposed gassupply pipe, of a burner; a chimney; a supply valve casing mounted onsaid gas supply pipe; and a chimney supporting bracket having curvedarms embracing the side of the chimney and secured thereto, said bracketbeing mounted on said valve casing and having a delivery passagecomnumicating with the passage of said valve easing.

5. In a lamp, the combination with a gas supply pipe, of a burner; achimney; a supply valve casing mounted on said gas supply pipe andhaving a chimney bracket thereon provided with a delivery passageconununicating with the passage of said casing; a gas delivery nozzlemember arranged through said bracket and communicating with said bracketpassage; a delivery nozzle on the inner end of said nozzle member; aburner tube arranged on said bracket and adapted to serve as a burnersupporting member; a pilot burner; a coupling member for said pilotcarried by said bracket; and a delivery pipe connecting said Valvecasing and coupling member.

6. In a gas lamp, the combination with a gas supply pipe, of a burner; achimney; a supply valve casing mounted on said gas supply pipe andhaving a chimney b'acket thereon provided with a delivery passagecommunicating with the passage of said casing; a gas delivery nozzlemember arranged through said bracket and communica ting with saidbracket passage; a delivery nozzle on the inner end of said nozzlemember; and a burner tube arranged on said bracket and adapted to serveas a burner sup porting member.

7. .In a gas lamp, the combination with a gas supply pipe, of a burner;a chimney; a supply valve casing mounted on said gas supply pipe andhaving a chimney bracket thereon provided with a delivery passagecommunicating with the passage of said casing; a pilot burner; acoupling member for said pilot carried by said bracket; and a deliverypipe conneetmg said valve casing and coupling member.

8. In a gas lamp, the combination with a gas supply pipe, of a burner; achimney; a supply valve casing mounted on said gas supply pipe andhaving a chimney bracket thereon provided with a delivery passagecennnunicating with the passage of said casing; a pilot burner; and adelivery connection from said valve casing to said pilot arrangedthrough said bracket on said valve casing.

9. An inverted burner comprising a body member having a delivery chamberopen at its upper end and a plurality of burner passages leadingtherefrom, said burner chamber being of conical shape and having radialribs disposed between said passages; an in verted conical screenarranged in said chamber to rest on said ribs; an inlet passage memberhaving a chamber registering with said chamber of said body; and aconical screen arranged in said inlet member chamber to rest on saidscreen arranged in said burner.

10. An inverted burner comprising a body member having a deliverychamber open at its upper end and a plurality of burner passages leadingtherefrom, said burner chamher being of conical shape and having radial"lbs disposed between said passages; and an inverted conical screenarranged in said chamber to rest on said ribs.

11. An inverted burner comprising a body member having a deliverychamber open at its upper end and a plurality of burner pas sagesleading therefrom, said burner chamber being of conical shape; aninverted conical screen arranged in said chamber; an inlet passagemember having a chamber registering with said chamber of said body; anda conical screen arranged in said inlet member chamber.

12. An inverted burner comprising a body member having a deliverychamber open at its upper end and a plurality of burner passages leadingtherefrom, said burner chamber being of conical shape; an invertedconical screen arranged in said chamber.

In witness whereof, we have hereunto set our hands and seals in thepresence of two witnesses.

FREDERICK J. HUMPHREY. HUBERT R. HUMPHREY.

Witnesses L. G. GREENFIELD, M. P. Wooonnrr.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

